11. Determine the exact value of n 5x a. - 2 b. 12. Determine the exact value of cot $ d. 1/4 0.005 13. Use your calculator to determine the value of sin 3.11, to three decimal places 0.031 b. 0.054 c 0.032 d. 14. Use your calculator to determine the value of cot4 25, to three decimal places. 2.006 b. 0.498 0.074 d. 13.457 Exis 15. An equivalent trigonometric expression for sin b. d. c. cOSX none of the above a. 16. An equivalent trigonometric expression for cos(-x) is b. c. cOSX d. -COS X a sina 17. Which compound angle formula is the easiest to use to develop the expression cose-sinºe? addition formula for sine subtraction formula for sine b. addition formula for cosinc d. subtraction formula for cosine a 18. Which graph of the following functions does not have vertical asymptotes? y = cotx - six ah b d. y = secx 19. The range of the graph of y-cosx is 0 Sys 2x c. -2x SX S2 b. -1 Sy si d. 1. YER a c. 20. The graph of y-cosx can be obtained by translating the graph of y-sinx rad to the right nad to the left b. rad to the right d. rad to the left